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Old 11-03-2012, 11:03 AM   #1
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MPG increase since moving to CO

Hello I just moved to CO about a two weeks ago from Virginia and have seen a dramatic increase in MPG in my jeep and seems to have more power also. My jeep went from 15 - 16 MPG hwy with a 275 - 300 mi range in VA to a consistent 19 -20 MPG here in CO 375 almost 400 mi range on 19 gal tank.

My question is what caused such a dramatic increase in MPG no work has been done. A friend said it could be a combination of altitude the 85 octane perhaps because the air here is less dense and there is less wind resistance. I don't believe any of those.

I'm not complaining just want to figure out what the heck caused it. Anyone ever experience this?

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Old 11-03-2012, 11:12 AM   #2
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Honestly none of those should happen. With higher altitude your engine loses power. The higher you are the less power you will get. I think Colorado springs is at a 15% loss from sea level and it's at about 6000-6500 feet. Im not sure about how you would get more gas mileage, if anything I feel it would be lower since your engine had to work harder.

But maybe your Jeep is giving you all these luxoryes because you moved it to one if the greatest places for wheeling

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Old 11-03-2012, 01:38 PM   #3
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Topher is correct that with the higher altitude your engine loses power. But there are lots of things that can and/or will affect your MPG at altitude.

Basically your ECU detects less air volume (oxygen) and reduces the amount of fuel being mixed = less fuel being consumed.

There is less air resistance than sea level. Hard to say how much this really affects our beloved Jeeps since it is basically a lego design for aerodynamics, but the fact remains air pressure is less and it does have sway.

Yeah there are a bunch of "hills" you go up, but what goes up must come down..and when you are coming down you don't tend to ride your accelerator, so less fuel being demanded.

Course once you hit all the great trails out here suspect your MPG will drop
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Old 11-03-2012, 06:23 PM   #4
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Quote:
Originally Posted by topher38 View Post
Honestly none of those should happen. With higher altitude your engine loses power. The higher you are the less power you will get. I think Colorado springs is at a 15% loss from sea level and it's at about 6000-6500 feet. Im not sure about how you would get more gas mileage, if anything I feel it would be lower since your engine had to work harder.

But maybe your Jeep is giving you all these luxoryes because you moved it to one if the greatest places for wheeling
Yes that is part of the reason to move here because of the Wheeling and skiing.

I have also noticed an increase in my car too from 31 mpg to almost 36 its just mind boggling. I will have to wait and see if it holds true.
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Old 11-03-2012, 09:26 PM   #5
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I think the Jeep is just happy to by here. lol
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Old 11-03-2012, 10:36 PM   #6
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Same happened to me when I moved from Nebraska. Everything's downhill from here😜
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Old 11-04-2012, 01:35 AM   #7
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Originally Posted by Codysrubicon View Post
Same happened to me when I moved from Nebraska. Everything's downhill from here😜
I did notice today that one way to work is down hill most of the way this could have something to do with it. But I do know my jeep has developed a smile now that it is here in CO.

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